package net.minecraft.client.particle;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.WorldRenderer;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.entity.Entity;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;

public class EntityFX extends Entity {
	protected int particleTextureIndexX;
	protected int particleTextureIndexY;
	protected float particleTextureJitterX;
	protected float particleTextureJitterY;
	protected int particleAge;
	protected int particleMaxAge;
	protected float particleScale;
	protected float particleGravity;

	/** The red amount of color. Used as a percentage, 1.0 = 255 and 0.0 = 0. */
	protected float particleRed;

	/**
	 * The green amount of color. Used as a percentage, 1.0 = 255 and 0.0 = 0.
	 */
	protected float particleGreen;

	/**
	 * The blue amount of color. Used as a percentage, 1.0 = 255 and 0.0 = 0.
	 */
	protected float particleBlue;

	/** Particle alpha */
	protected float particleAlpha;

	/** The icon field from which the given particle pulls its texture. */
	protected TextureAtlasSprite particleIcon;
	public static double interpPosX;
	public static double interpPosY;
	public static double interpPosZ;

	protected EntityFX(World worldIn, double posXIn, double posYIn, double posZIn) {
		super(worldIn);
		this.particleAlpha = 1.0F;
		this.setSize(0.2F, 0.2F);
		this.setPosition(posXIn, posYIn, posZIn);
		this.lastTickPosX = this.prevPosX = posXIn;
		this.lastTickPosY = this.prevPosY = posYIn;
		this.lastTickPosZ = this.prevPosZ = posZIn;
		this.particleRed = this.particleGreen = this.particleBlue = 1.0F;
		this.particleTextureJitterX = this.rand.nextFloat() * 3.0F;
		this.particleTextureJitterY = this.rand.nextFloat() * 3.0F;
		this.particleScale = (this.rand.nextFloat() * 0.5F + 0.5F) * 2.0F;
		this.particleMaxAge = (int) (4.0F / (this.rand.nextFloat() * 0.9F + 0.1F));
		this.particleAge = 0;
	}

	public EntityFX(World worldIn, double xCoordIn, double yCoordIn, double zCoordIn, double xSpeedIn, double ySpeedIn,
			double zSpeedIn) {
		this(worldIn, xCoordIn, yCoordIn, zCoordIn);
		this.motionX = xSpeedIn + (Math.random() * 2.0D - 1.0D) * 0.4000000059604645D;
		this.motionY = ySpeedIn + (Math.random() * 2.0D - 1.0D) * 0.4000000059604645D;
		this.motionZ = zSpeedIn + (Math.random() * 2.0D - 1.0D) * 0.4000000059604645D;
		float f = (float) (Math.random() + Math.random() + 1.0D) * 0.15F;
		float f1 = MathHelper
				.sqrt_double(this.motionX * this.motionX + this.motionY * this.motionY + this.motionZ * this.motionZ);
		this.motionX = this.motionX / (double) f1 * (double) f * 0.4000000059604645D;
		this.motionY = this.motionY / (double) f1 * (double) f * 0.4000000059604645D + 0.10000000149011612D;
		this.motionZ = this.motionZ / (double) f1 * (double) f * 0.4000000059604645D;
	}

	public EntityFX multiplyVelocity(float multiplier) {
		this.motionX *= (double) multiplier;
		this.motionY = (this.motionY - 0.10000000149011612D) * (double) multiplier + 0.10000000149011612D;
		this.motionZ *= (double) multiplier;
		return this;
	}

	public EntityFX multipleParticleScaleBy(float p_70541_1_) {
		this.setSize(0.2F * p_70541_1_, 0.2F * p_70541_1_);
		this.particleScale *= p_70541_1_;
		return this;
	}

	public void setRBGColorF(float particleRedIn, float particleGreenIn, float particleBlueIn) {
		this.particleRed = particleRedIn;
		this.particleGreen = particleGreenIn;
		this.particleBlue = particleBlueIn;
	}

	/**
	 * Sets the particle alpha (float)
	 */
	public void setAlphaF(float alpha) {
		if (this.particleAlpha == 1.0F && alpha < 1.0F) {
			Minecraft.getMinecraft().effectRenderer.moveToAlphaLayer(this);
		} else if (this.particleAlpha < 1.0F && alpha == 1.0F) {
			Minecraft.getMinecraft().effectRenderer.moveToNoAlphaLayer(this);
		}

		this.particleAlpha = alpha;
	}

	public float getRedColorF() {
		return this.particleRed;
	}

	public float getGreenColorF() {
		return this.particleGreen;
	}

	public float getBlueColorF() {
		return this.particleBlue;
	}

	public float getAlpha() {
		return this.particleAlpha;
	}

	/**
	 * returns if this entity triggers Block.onEntityWalking on the blocks they walk
	 * on. used for spiders and wolves to prevent them from trampling crops
	 */
	protected boolean canTriggerWalking() {
		return false;
	}

	protected void entityInit() {
	}

	/**
	 * Called to update the entity's position/logic.
	 */
	public void onUpdate() {
		this.prevPosX = this.posX;
		this.prevPosY = this.posY;
		this.prevPosZ = this.posZ;

		if (this.particleAge++ >= this.particleMaxAge) {
			this.setDead();
		}

		this.motionY -= 0.04D * (double) this.particleGravity;
		this.moveEntity(this.motionX, this.motionY, this.motionZ);
		this.motionX *= 0.9800000190734863D;
		this.motionY *= 0.9800000190734863D;
		this.motionZ *= 0.9800000190734863D;

		if (this.onGround) {
			this.motionX *= 0.699999988079071D;
			this.motionZ *= 0.699999988079071D;
		}
	}

	/**
	 * Renders the particle
	 */
	public void renderParticle(WorldRenderer worldRendererIn, Entity entityIn, float partialTicks, float p_180434_4_,
			float p_180434_5_, float p_180434_6_, float p_180434_7_, float p_180434_8_) {
		float f = (float) this.particleTextureIndexX / 16.0F;
		float f1 = f + 0.0624375F;
		float f2 = (float) this.particleTextureIndexY / 16.0F;
		float f3 = f2 + 0.0624375F;
		float f4 = 0.1F * this.particleScale;

		if (this.particleIcon != null) {
			f = this.particleIcon.getMinU();
			f1 = this.particleIcon.getMaxU();
			f2 = this.particleIcon.getMinV();
			f3 = this.particleIcon.getMaxV();
		}

		float f5 = (float) (this.prevPosX + (this.posX - this.prevPosX) * (double) partialTicks - interpPosX);
		float f6 = (float) (this.prevPosY + (this.posY - this.prevPosY) * (double) partialTicks - interpPosY);
		float f7 = (float) (this.prevPosZ + (this.posZ - this.prevPosZ) * (double) partialTicks - interpPosZ);
		int i = this.getBrightnessForRender(partialTicks);
		int j = i >> 16 & 65535;
		int k = i & 65535;
		worldRendererIn
				.pos((double) (f5 - p_180434_4_ * f4 - p_180434_7_ * f4), (double) (f6 - p_180434_5_ * f4),
						(double) (f7 - p_180434_6_ * f4 - p_180434_8_ * f4))
				.tex((double) f1, (double) f3)
				.color(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha).lightmap(j, k)
				.endVertex();
		worldRendererIn
				.pos((double) (f5 - p_180434_4_ * f4 + p_180434_7_ * f4), (double) (f6 + p_180434_5_ * f4),
						(double) (f7 - p_180434_6_ * f4 + p_180434_8_ * f4))
				.tex((double) f1, (double) f2)
				.color(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha).lightmap(j, k)
				.endVertex();
		worldRendererIn
				.pos((double) (f5 + p_180434_4_ * f4 + p_180434_7_ * f4), (double) (f6 + p_180434_5_ * f4),
						(double) (f7 + p_180434_6_ * f4 + p_180434_8_ * f4))
				.tex((double) f, (double) f2)
				.color(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha).lightmap(j, k)
				.endVertex();
		worldRendererIn
				.pos((double) (f5 + p_180434_4_ * f4 - p_180434_7_ * f4), (double) (f6 - p_180434_5_ * f4),
						(double) (f7 + p_180434_6_ * f4 - p_180434_8_ * f4))
				.tex((double) f, (double) f3)
				.color(this.particleRed, this.particleGreen, this.particleBlue, this.particleAlpha).lightmap(j, k)
				.endVertex();
	}

	public int getFXLayer() {
		return 0;
	}

	/**
	 * (abstract) Protected helper method to write subclass entity data to NBT.
	 */
	public void writeEntityToNBT(NBTTagCompound tagCompound) {
	}

	/**
	 * (abstract) Protected helper method to read subclass entity data from NBT.
	 */
	public void readEntityFromNBT(NBTTagCompound tagCompund) {
	}

	/**
	 * Sets the particle's icon.
	 */
	public void setParticleIcon(TextureAtlasSprite icon) {
		int i = this.getFXLayer();

		if (i == 1) {
			this.particleIcon = icon;
		} else {
			throw new RuntimeException("Invalid call to Particle.setTex, use coordinate methods");
		}
	}

	/**
	 * Public method to set private field particleTextureIndex.
	 */
	public void setParticleTextureIndex(int particleTextureIndex) {
		if (this.getFXLayer() != 0) {
			throw new RuntimeException("Invalid call to Particle.setMiscTex");
		} else {
			this.particleTextureIndexX = particleTextureIndex % 16;
			this.particleTextureIndexY = particleTextureIndex / 16;
		}
	}

	public void nextTextureIndexX() {
		++this.particleTextureIndexX;
	}

	/**
	 * If returns false, the item will not inflict any damage against entities.
	 */
	public boolean canAttackWithItem() {
		return false;
	}

	public String toString() {
		return this.getClass().getSimpleName() + ", Pos (" + this.posX + "," + this.posY + "," + this.posZ + "), RGBA ("
				+ this.particleRed + "," + this.particleGreen + "," + this.particleBlue + "," + this.particleAlpha
				+ "), Age " + this.particleAge;
	}
}
